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Added View::startIfEmpty($name)

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LiquidityC committed Oct 28, 2012
1 parent b75bb8e commit 43d766f45cff9b218f0cf89d555508ee080c95d7
Showing with 46 additions and 1 deletion.
  1. +12 −1 lib/Cake/View/View.php
  2. +34 −0 lib/Cake/View/ViewBlock.php
@@ -599,7 +599,18 @@ public function start($name) {
}
/**
* Append to an existing or new block. Appending to a new
* Start capturing output for a 'block' if it has no content
*
* @param string $name The name of the block to capture for.
* @return void
* @see ViewBlock::startIfEmpty()
*/
public function startIfEmpty($name) {
return $this->Blocks->startIfEmpty($name);
}
/**
* Append to an existing or new block. Appending to a new
* block will create the block.
*
* @param string $name Name of the block
@@ -51,6 +51,15 @@ class ViewBlock {
*/
protected $_active = array();
/**
* Should the currently captured content be discarded on ViewBlock::end()
*
* @var boolean
* @see ViewBlock::end()
* @see ViewBlock::startIfEmpty()
*/
protected $_discardActiveBufferOnEnd = false;
/**
* Start capturing output for a 'block'
*
@@ -68,13 +77,38 @@ public function start($name) {
ob_start();
}
/**
* Start capturing output for a 'block' if it is empty
*
* Blocks allow you to create slots or blocks of dynamic content in the layout.
* view files can implement some or all of a layout's slots.
*
* You can end capturing blocks using View::end(). Blocks can be output
* using View::get();
*
* @param string $name The name of the block to capture for.
* @return void
*/
public function startIfEmpty($name) {
if (empty($this->_blocks[$name])) {
return $this->start($name);
}
$this->_discardActiveBufferOnEnd = true;
ob_start();
}
/**
* End a capturing block. The compliment to ViewBlock::start()
*
* @return void
* @see ViewBlock::start()
*/
public function end() {
if ($this->_discardActiveBufferOnEnd) {
$this->_discardActiveBufferOnEnd = false;
ob_end_clean();
return;
}
if (!empty($this->_active)) {
$active = end($this->_active);
$content = ob_get_clean();

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